Best Slowed + Reverb Settings: Speed, Reverb and Pitch

Starting recipe	Browser speed	Browser reverb	First listening check
Subtle	0.90×	20–40%	Keep the vocal understandable
Spacious	0.85×	25–40%	Keep gaps between phrases
Heavy	0.80×	15–35%	Keep bass and kick distinct
Ultra slowed	0.70×	10–25%	Keep the groove recognizable

These are starting ranges, not scientifically verified presets or guarantees about a genre.

Speed: 0.90× vs 0.85× vs 0.80× vs 0.70×

The slowed + reverb tool has a speed range of 0.70×–1.00× and defaults to 0.90×. Its speed slider changes pitch too. Compare the following browser renders with the same 40% reverb amount so that you are not changing two decisions at once.

0.90× is the least extreme slowed example here. Start with it when the words matter or the track is already relaxed. Listen beyond the introduction: the full chorus may tell you more than a quiet opening.

0.85× is a useful in-between setting to try yourself. It sits between the first two rendered speed examples; we are not presenting a separate recording of that setting. Compare it directly with 0.90× if one feels too close to the source and the other too heavy.

0.80× is a more obvious reinterpretation. Check short vocal syllables, snare attacks and the spaces between bass notes. If the arrangement becomes a continuous wash, do not assume more reverb will rescue it.

0.70× is the bottom of this browser slider, not a universal definition of ultra slowed. It can be a deliberate creative choice, but it is also where you should be especially willing to reject the result.

Audacity’s speed-and-pitch documentation describes why slowing playback lowers frequency content as well as tempo.[1] If what bothers you is the deeper singer rather than the slower groove, the next decision should be about pitch, not an even lower speed.

Reverb: small room vs hall vs huge space

First separate amount from room character. In Karps’ quick tool, Reverb blends a fixed synthetic effect with the source. A reading of 40% is the tool’s amount setting; it does not mean a measured 40% room size or a transferable 40% wet mix in another app.

The browser does not have a Booth/Hall/Dome selector. Its reverb amount cannot be translated directly into the named recorded-space reverbs in Studio. If another tutorial says “choose Hall,” that step belongs to a different interface.

Studio’s actual room names are Booth, Bar, Hall, Cave, Garage, Stairwell, Pool, Court, Tunnel, Lobby, Bridge and Dome. These use recorded impulse responses, and Studio reverb requires Premium. Choose by listening rather than assuming a larger-sounding name will improve every mix.

Here are three existing Studio demonstrations, each compared with its original. These are complete Studio presets, not browser renders or a promise that their sound can be recreated with the quick amount slider.

Use Booth as your first comparison if you want less obvious spaciousness, then audition Stairwell and Dome for alternatives. This is a listening order, not a ranking. Keep the playback volume comfortable and reasonably consistent; a louder example should not automatically win.

Audacity’s reverb manual distinguishes simulated room size, reverberance and dry/wet gain.[3] That is why “how much reverb?” does not have a single answer across programs: the same number can refer to different controls.

Pitch: deeper voice or natural voice?

Decide whether the lower voice is part of your goal. If yes, browser varispeed is a direct way to get it. If not, reducing reverb will not bring the original pitch back.

In Studio, tempo and pitch are separate effects. Basic Slowed keeps the original pitch unless you add a pitch effect; the Lower effect is a separate choice. This makes “slower” and “deeper” two decisions rather than one locked pair.

Time-stretching is not an assurance of a perfectly unchanged timbre at every setting. Audacity’s Change Tempo documentation identifies it as tempo alteration without pitch change and notes that extreme processing can introduce audible artifacts.[2] Judge the actual preview, especially on exposed vocals and sharp percussion.

The browser is free without an account. Studio requires an account, and its effect access depends on the plan: basic Slowed is Free, while recorded-space reverb and Ultra Slowed require Premium. Use the Studio demo to hear the available character before deciding whether you need those features.

Recipes by mood: sad, lofi/study, phonk and anime edits

Treat a mood label as a brief, not a rule. “Sad” does not tell you how much reverb is already printed into a vocal. “Phonk” does not tell you whether the bass is clean or deliberately distorted. The setting should follow the source.

Intended feel	Starting speed	Quick reverb	What to change next
Sad, lyric-led	0.85×	25–35%	Raise speed if the words lose their shape
Lofi/study background	0.90×	15–25%	Leave existing ambience alone if it already works
Heavy phonk	0.80×	10–20%	Reduce reverb before adding bass effects elsewhere
Reflective anime edit	0.85×	20–35%	Check whether the chorus still fits the visual pacing
Ultra-slow texture	0.70×	10–20%	Compare with 0.80× before committing

The “study” row describes an intended listening context, not a claim that the preset improves concentration. These ranges are suggestions to audition; only the explicitly labeled audio examples above are recordings of those particular settings.

For a vocal-led edit, write down one priority, such as “every lyric understandable.” For a rhythm-led edit, use “the kick still lands distinctly.” This turns a vague search for atmosphere into a decision you can test.

Make an A version at your starting setting. Change only speed for version B. Choose between them, then repeat the process with reverb. If you adjust everything at once, you may like the result but have no idea which change helped.

How to avoid a muddy mix

Start with the least complicated fix: turn reverb off. If the mix becomes clear, bring it back in smaller amounts. If the problem remains, compare a less extreme speed before looking for extra processing.

Listen at three useful moments: the busiest chorus, a gap after the vocal, and the ending. In the chorus, check whether the bass notes remain separate. In the gap, check whether the tail obscures the next phrase. At the ending, allow the decay to finish instead of cutting it off abruptly in your video editor.

Do not keep exporting MP3, reimporting that export, and adding another pass of reverb. Return to the original source and render the final choice once. Keeping a simple settings note is more reliable than trying to remember which file named “final” had the clearer vocal.

Check headphones and your normal playback device. A headphone version can have enough detail to sound convincing while a phone speaker exposes weak vocal clarity. If only the louder version seems better, reduce its playback volume and compare again before changing the effect.

There is no loudness target built into the quick Reverb percentage. The browser’s peak protection is not a guarantee that an edit matches a platform’s playback normalization. For that separate problem, read how loud music should be for YouTube and Spotify.

If you are still deciding on the overall sound, read why slowed songs can feel different. If you need the actual file-to-download workflow, use how to make slowed + reverb.

The useful preset is the one you can explain: the speed keeps the groove you want, the vocal has the character you chose, and the reverb leaves enough room for the next phrase. Start there; add complexity only when you can hear what it contributes.

Sources

• 1 — Audacity: Change Speed and Pitch
• 2 — Audacity: Change Tempo
• 3 — Audacity: Reverb